CN2117306U - Steering gears of motor vehicle - Google Patents
Steering gears of motor vehicle Download PDFInfo
- Publication number
- CN2117306U CN2117306U CN 92211438 CN92211438U CN2117306U CN 2117306 U CN2117306 U CN 2117306U CN 92211438 CN92211438 CN 92211438 CN 92211438 U CN92211438 U CN 92211438U CN 2117306 U CN2117306 U CN 2117306U
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- corner
- rocking bar
- bar
- arm
- steering
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Abstract
The utility model provides a vehicle steering gear, which is the improvement on the trapezoid driving mechanism of the vehicle steering gear. The mechanism comprises a rotation angle generating mechanism, a rotation angle diversion mechanism, and a rotation angle transportation mechanism. When the vehicle runs and steers towards the left side or the right side, the mechanism can make all wheels rotate around the same instant steering center for ensuring that each wheel is under pure rolling without side slip. Compared with the prior trapezoid driving mechanism, the utility model efficiently reduces the additional resistance of the vehicle running, further enhances the stability of the vehicle running, and relieves the tyre wear. The mechanism has the advantages of simple structure and convenient mounting and is suitable for the steering vehicle with high speed and large angle.
Description
The utility model relates to car steering linkage mechanism, particularly to steering trapezium transmission device improved steering gear in addition.
For fear of additional resistance and the tire enhance faster wear of the road surface that produces when the motor turning to running car, require steering system can guarantee automobile when turning to, all wheels are all made pure rolling.Could realize this requirement when obviously, having only the axis of all wheels all to intersect at a point.The angle of inclination β of wheel flutter should be greater than the angle of deflection of outer wheel flutter promptly.At wheel is under the assumed condition of absolute rigid body, and the ideal relationship formula of angle α and β should be:
ctgα＝ctgβ＋M／L
In the formula: the distance between M-both sides main pin axis and the ground joining;
The L-turning center is to the distance of steeraxle axis.
Modern automobile all adopts the steering hardware of A Kaman-Charlie's Si formula, exactly in order to realize this purpose preferably.For this reason, must determine the geometric parameter of the steering trapezium in the steering gear meticulously.But up to now, the steering trapezium of all automobiles in fact all can only design in certain wheel angle of inclination scope, make the relation of both sides wheel angle of inclination approach above-mentioned ideal relationship substantially.See that Japanese little Tian Peihao three works, Xu Fengyuan are translated for details, Wu Wanan school " automobile design ", China Machine Press's Wuhan in June nineteen ninety the first edition 134-137 page or leaf and Jilin Industry University automobile teaching and research room writes, Wu Zhi democracy is compiled " automobile construction " volume two, the second edition 204-206 in June nineteen ninety of People's Transportation Press page or leaf.
The purpose of this utility model is exactly the weak point at above-mentioned prior art, the trapezoidal transmission device of motor turning is improved, not only in theory, and each wheel is all made pure rolling can realize motor turning easily actually the time, in it, the angle of inclination of outer wheel flutter meet the above-mentioned relation formula more.
Above-mentioned purpose of the present utility model is realized by following technical proposals.
This car steering linkage mechanism generates mechanism, corner changed course mechanism and corner transport sector by corner and forms.Corner generates mechanism and is positioned at steeraxle one side, and the corner transport sector is positioned at opposite side, is corner changed course mechanism between its two.
Corner generates mechanism and is made up of pilot bar, sliding shoe, left rocking bar, left steering joint, right rocking bar.Left side rocking bar and right rocking bar all adopt the slide hinge mode to connect with sliding shoe, and sliding shoe is installed on the pilot bar and can slides.The other end of left side rocking bar is unified into by left side stub axle and left steering joint fixed phase and is one, and can rotate around this bearing pin.The driving gear of the other end of right rocking bar and corner changed course mechanism fixedly links, and can rotate together.
The pilot bar that corner generates mechanism intersects at line between left side stub axle and the driving gear shaft, and its intersection point is with this line five equilibrium, and the size of its intersection angle γ is relevant with aforementioned L and M, and its relational expression is:
Tg γ=2L/M(or γ=arctg2L/M).
Corner changed course mechanism is made up of two identical intermeshed gear with modulus of diameter.Driving gear is captiveed joint with right rocking bar, and driven gear is captiveed joint with left rocking arm.The switched in opposite of two gears, its corner equal and opposite in direction.
The corner transport sector is made up of left rocking arm, intermediate rod, right rocking arm, right steering joint and right side stub axle.Wherein the two ends of intermediate rod connect with left and right rocking arm by space hinge-coupled mode respectively, form a parallel four-bar linkage, and the corner that right rocking bar and driving gear are produced remains unchanged when transmission.
Right rocking arm is unified into by right side stub axle fixed phase with the right steering joint and is one, and can rotate around this bearing pin, thereby guaranteeing that the next corner of above-mentioned four-bar linkage transmission remains unchanged is transferred to right-hand wheel.
When automobile when travel in the dead ahead, the slide block that corner generates in the mechanism is on the mid point of line between left side stub axle and the driving gear shaft, thus left rocking bar and right rocking bar in-line, this moment two front-wheels to turn to angle of deflection and β to be zero.
When the automobile left-handed turning when travelling, should make sliding shoe along pilot bar to front slide, drive left and right rocking bar sliding end simultaneously and swing forward.Make left side wheel (wheel flutter promptly) produce an angle of inclination β left, driving gear is clockwise rotated produce an angle of deflection.Drive driven gear simultaneously and rotate counterclockwise, driven gear drives left rocking arm again and rotates counterclockwise angle of deflection of generation.Parallel four-bar linkage remains unchanged the α angle, and makes right-hand wheel (promptly outer wheel flutter) produce an angle of deflection left by right rocking arm and right steering joint.This moment α＜β.
When the automobile right-hand turning when travelling, sliding shoe is slided backward along pilot bar, drive left and right rocking bar sliding end simultaneously and swing backward.Make left side wheel (promptly outer wheel flutter) produce an angle of deflection to the right, driving gear is rotated counterclockwise produce an angle of inclination β.Drive driven gear simultaneously and clockwise rotate, driven gear drives left rocking arm again and clockwise rotates angle of inclination β of generation.Parallel four-bar linkage remains unchanged the β angle, and makes right-hand wheel (wheel flutter promptly) produce an angle of inclination β to the right by right rocking arm and right steering joint.This moment is α＜β still.
The car steering linkage mechanism all provable by theory calculating, geometric construction and actual measurement, that the utility model provides can realize that not only its foreign steamer turns to angle of deflection to turn to angle of inclination β less than interior wheel, and can point-devicely meet aforementioned relational expression.All wheels are all around same instantaneous center of turn rotation when travelling turning to so can make automobile, and each wheel is pure rolling and does not have sideslip.It has further improved running car stability, and has alleviated wear on tyres greatly than having the additional resistance that trapezoidal transmission device can more effectively reduce running car now, and this is the most basic advantage of the utility model.Other advantage is: version is simple, geometric parameter is easily fixed, easily survey, easy to install, cost is low, high efficiency.Be specially adapted to high-speed and wide-angle car of turning direction, as racing car, Pullman saloon, mine truck etc.
Steering gear principle schematic of the present utility model when accompanying drawing 1 is the automobile straight-line travelling.Fig. 2 is automobile left steering its steering gear principle schematic when travelling.Fig. 3 is automobile right steering its steerage gear principle schematic when travelling.The structural representation of its steering gear when Fig. 4 is the automobile left steering (from tailstock eyes front).Fig. 5 is that the H-H of Fig. 4 is to view (being equivalent to birds-eye view).
Details are as follows to embodiment of the present utility model in conjunction with the accompanying drawings.1 is pilot bar in the accompanying drawing, the 2nd, and sliding shoe, the 3rd, left rocking bar, the 4th, right rocking bar, the 5th, driving gear, the 6th, driven gear, the 7th, left rocking arm, the 8th, intermediate rod, the 9th, right rocking arm, the 10th, left steering joint, the 11st, right steering joint, the 12nd, left wheel, the 13rd, right wheel.A is a left side stub axle, and B is a right side stub axle, and C is a driving gear shaft, and D is the hinge that sliding shoe and rocking bar are slidingly connected mutually, and E is a driven gear shaft, and F is the left space hinge, and G is the right space hinge.Wherein, pilot bar 1 is fixedly mounted on the car chassis, and A, B, C, E are similar to fixed hinge.Pilot bar 1 is γ with the intersection angle of AC line, and its size is by aforementioned L and M decision, i.e. γ=arctg2L/M, and its joining is the D point among Fig. 1, and AD=DC.The size of this intersection angle and point of crossing position thereof are very important, can the inside and outside wheel flutter angle of inclination β and the α of the car steering linkage mechanism that the utility model provides meet aforementioned relational expression, therefore the precision that just depends on these geometric parameters should be specifically noted that when measuring and install.
As shown in the figure, by pilot bar 1, sliding shoe 2, left rocking bar 3, right rocking bar 4, left steering joint 10, and left side stub axle A, driving gear shaft C, slide hinge D, form corner and generated mechanism.Formed corner changed course mechanism by driving gear 5 and driven gear 6, the diameter of this a pair of gear must be identical with modulus, could guarantee that corner alters course and big or small constant, can be conical gear, also can be cylindrical wheel.By left rocking arm 7, intermediate rod 8, right rocking arm 9, right steering joint 11, and driven gear shaft E, space hinge F and G, right side stub axle B has formed parallel four connecting rod corner transport sectors, corner can be generated that mechanism produces and remain unchanged through the corner of corner changed course mechanism conversion to be transferred to right-hand wheel.It not only had been similar to but also had been different from the trapezoidal transmission device of prior art.
When automobile will turn to when travelling to the left or to the right, its steering control mechanism and deflector just make the slide block 2 in the steering gear that the utility model provides slide forward or backward along pilot bar 1, thereby driving left rocking bar 3 and right rocking bar 4 swings forward or backward, left wheel 12 is directly produced turn to angle of inclination β or α, make right wheel 13 indirect generations turn to angle of deflection or β accordingly.No matter turn to the left or to the right, the angle of inclination β of interior wheel flutter is greater than the angle of deflection of outer wheel flutter, and meets the requirement of aforementioned relational expression.
Claims (5)
1, car steering linkage mechanism, comprise pitman arm, turn to main tie, track arm, tie rod arm and tierod, of the present utility modelly be characterised in that this mechanism generates mechanism, corner changed course mechanism by corner and the corner transport sector is formed, corner generates mechanism and is positioned at steeraxle one side, the corner transport sector is positioned at opposite side, is corner changed course mechanism between its two.
2, car steering linkage mechanism according to claim 1, it is characterized in that corner generates mechanism by pilot bar (1), sliding shoe (2), left side rocking bar (3), right rocking bar (4) is formed, left side rocking bar (3) and right rocking bar (4) all adopt the slide hinge mode to connect with sliding shoe (2), sliding shoe (2) is installed in pilot bar (1) and goes up also and can slide, the other end of left side rocking bar (3) is unified into left steering joint (10) fixed phase by left side stub axle (A) and is one, and can rotate around this bearing pin, the driving gear (5) of the other end of right rocking bar (4) and corner changed course mechanism fixedly links, and can rotate together.
3, car steering linkage mechanism according to claim 2 is characterized in that the pilot bar (1) of corner generation mechanism intersects at line between left side stub axle (A) and the driving gear shaft (C), and its intersection point is with this line five equilibrium.
4, car steering linkage mechanism according to claim 1, it is characterized in that corner changed course mechanism is made up of two identical intermeshed gear with modulus of diameter (5) and (6), driving gear (5) is captiveed joint with right rocking bar (4), driven gear (6) is captiveed joint with left rocking arm (7), the switched in opposite of two gears, its corner equal and opposite in direction.
5, car steering linkage mechanism according to claim 1, it is characterized in that the corner output mechanism saves (11) by left rocking arm (7), intermediate rod (8), right rocking arm (9), right steering and right side stub axle (B) is formed, wherein intermediate rod (8) two ends connect with left and right rocking arm by space hinge-coupled mode respectively, formed a parallel four-bar linkage, the corner that right rocking bar (4) and driving gear (5) are produced remains unchanged when transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92211438 CN2117306U (en) | 1992-03-24 | 1992-03-24 | Steering gears of motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92211438 CN2117306U (en) | 1992-03-24 | 1992-03-24 | Steering gears of motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2117306U true CN2117306U (en) | 1992-09-30 |
Family
ID=4956451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92211438 Granted CN2117306U (en) | 1992-03-24 | 1992-03-24 | Steering gears of motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2117306U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069846A (en) * | 2010-12-13 | 2011-05-25 | 马燕翔 | Pure rolling steering device of automobile |
| CN104058005A (en) * | 2014-07-01 | 2014-09-24 | 童亮 | Diamond steering mechanism |
| CN106152994A (en) * | 2015-04-03 | 2016-11-23 | 徐工集团工程机械股份有限公司 | Wheel steering angle measurement apparatus, multi-shaft steering vehicle and wheel steering angle measuring method |
-
1992
- 1992-03-24 CN CN 92211438 patent/CN2117306U/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069846A (en) * | 2010-12-13 | 2011-05-25 | 马燕翔 | Pure rolling steering device of automobile |
| WO2012079281A1 (en) * | 2010-12-13 | 2012-06-21 | Ma Yanxiang | Automobile pure-rolling steering device |
| CN102069846B (en) * | 2010-12-13 | 2012-12-26 | 马燕翔 | Pure rolling steering device of automobile |
| CN104058005A (en) * | 2014-07-01 | 2014-09-24 | 童亮 | Diamond steering mechanism |
| CN106152994A (en) * | 2015-04-03 | 2016-11-23 | 徐工集团工程机械股份有限公司 | Wheel steering angle measurement apparatus, multi-shaft steering vehicle and wheel steering angle measuring method |
| CN106152994B (en) * | 2015-04-03 | 2020-01-10 | 徐工集团工程机械股份有限公司 | Wheel corner measuring device, multi-axle steering vehicle and wheel corner measuring method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |